1, the difference is as follows
The bivalent vaccine can prevent two high-risk human papillomavirus viruses, HPV 16 and human papillomavirus 18. These two viruses account for 74% of female cervical cancer in China, so bivalent vaccine can prevent more. HPV6, 1, 16, 18, four kinds of human papillomavirus, can not only prevent 70% of cervical cancer, but also prevent more 90% of condyloma acuminatum, which is an improvement compared with bivalent vaccine. It must be said that the nine-valent vaccine is preventive and more comprehensive, and the nine-valent vaccine is the vaccine that prevents the most human papillomavirus. 16,18,31,33,45,52,589 can prevent 90% of cervical cancer, 85% of vaginal cancer and 90% of acute eczema. From this, we can see the difference. The 9-valent vaccine has the largest protection range, so the 9-valent vaccine has the highest cost performance. It has a wide range of preventive effects.
2. Age limit
I have to say that the injection age of cervical cancer vaccine is also limited by time, and it is best to be 9~26 years old. However, it should be noted that the age limit is not absolute. As long as people are not infected with human papillomavirus, they can be vaccinated with HPV, which can also effectively prevent the occurrence of cervical cancer.
3. The key to vaccination
I have to say that the key to vaccination is whether you have sex, because HPV vaccine is the best for women who have no sexual history. Because of sexual life infection, the probability of human papillomavirus will rise sharply, and even if it is effective, it will not achieve the expected effect.